养生温度对水泥稳定碎石基层抗裂性能的影响  

Influence of Curing Temperature on Crack Resistance of Cement-Stabilized Macadam Base Course Material

作　　者：孙兆辉[1] 许志鸿[1] 刘志远[2] 欧阳伟[3] 林晓[1] 

机构地区：[1]同济大学道路与交通工程教育部育部重点试验室,上海200092 [2]海南省公路勘察设计院,海南海口570206 [3]辽宁省交通高等专科学校道路与桥梁系,辽宁沈阳110122

出　　处：《建筑材料学报》2006年第5期555-559,共5页Journal of Building Materials

摘　　要：在养生温度为25°C和10°C的情况下,分别对水泥稳定碎石基层材料进行无侧限抗压强度试验、干缩试验以及温缩试验.比较这2种养生温度下的试验结果发现:养生温度对水泥稳定碎石的强度及收缩性能均有影响;低温条件下养生、施工有利于改善水泥稳定碎石基层材料的抗裂性能.A series of trials on cement-stabilized base course mateials, such as unconfined compressive strength,dry shrinkage and temperature shrinkage,were done under the condition of curing temperature 25 ℃ and 10℃. It is found by comparing trial results that curing temperature has influence on strength and shrinkage performance of cement-stabilized macadam. Curing and constructing for cement-stabilized macadam under the condition of lower temperature is benefit to improve its crack resistance.

关 键 词：水泥稳定碎石 养生温度 无侧限抗压强度 干缩系数 温缩系数 

分 类 号：U414.1[交通运输工程—道路与铁道工程]